Imagine if you gave away some old clothes to some Charity and they called you and said “Some of the socks have holes in them and we need you to come over here and fix those holes ASAP because we want to sell them in our used clothes store”. What would be your reaction to that?
I think your hypothetical scenario doesn't match the issue being discussed in a few key aspects.
You're giving old clothes with no expectation of return. Why then get pissed because someone is using your clothes without paying you for them?
Then,if you make it your point to put up a system for everyone to file tickets pointing problems with the clothes you're giving away, why are you whining that the system is being used as it was designed to be used?
It's perfectly fine if you feel the need to prioritize your work based on your criteria alone, and anyone else's input is at most a suggestion. That's what everyone expects of it, too. But don't throw a tantrum when someone uses your work precisely as you told the world to use it.
I'm not sure what experience you have in maintaining any somewhat popular FLOSS project, but as I said in other posts the way random users demand features and fixes in these circles already became a meme in FLOSS circles. We're talking about insults and belligerent attitudes towards whole projects in abstract and maintainers in particular, to the point maintainers end up burning out and quitting.
Knowing this, complaining that a particular request was described as high-priority as if this was unacceptable, fully knowing that this doesn't even represent a remark that's out of line given the baseline, is something that makes no sense at all. It sounds as an lame attempt to be outraged about something.